174 QUANTITATIVE EXPOSURE ASSESSMENT IN COMMUNITY-BASED STUDIES: LESSONS LEARNED FROM THE ECRHSKromhout, H.Lillienberg, L.Zock, J-P.Author information1 IRAS UU; 2 Sahlgrenska University; 3 CREE IMIMOccupational and Environmental Medicine 64(12):p e33, December 2007.Copyright © 2007 BMJ Publishing Group Ltd